Fluid dynamics

Fluid dynamics is the study of the motion of liquids, gases and plasmas. Flow is dependent on the intrinsic properties of the matter itself, such as compressibility, viscosity and density. Example systems are a liquid flowing through a pipe or capillary, air moving across an aeroplane wing, and plasma motion in a stars magnetic field.

Latest Research and Reviews

  • Research |

    Numerical modelling of rotating turbulent convective flows shows that the length scale of convection in planetary cores is set by the flow speed and not by the fluid viscosity.

    • Céline Guervilly
    • , Philippe Cardin
    •  & Nathanaël Schaeffer
    Nature 570, 368-371
  • Research | | open

    While the physics of freezing water droplets are known, it is less known how bubbles freeze. The authors investigate the physics of freezing soap bubbles and identify two distinct freezing modes, depending on whether the surroundings are warmer or colder than the melting temperature.

    • S. Farzad Ahmadi
    • , Saurabh Nath
    • , Christian M. Kingett
    • , Pengtao Yue
    •  & Jonathan B. Boreyko
  • Research | | open

    The development of functional microrobots calls for new strategies to design locomotion facilitating navigation through complex environments. Here, Lee et al. show how to realize and program helical motion in three dimensions using patchy microspheres under an alternating current electric field.

    • Jin Gyun Lee
    • , Allan M. Brooks
    • , William A. Shelton
    • , Kyle J. M. Bishop
    •  & Bhuvnesh Bharti
  • Research | | open

    T-junctions are a tool for droplet generation; they are well-described by models that distinguish for squeezing and jetting regimes for different capillary numbers. By considering the usually neglected corner flow, the authors identify an additional leaking regime for very low capillary numbers.

    • Piotr M. Korczyk
    • , Volkert van Steijn
    • , Slawomir Blonski
    • , Damian Zaremba
    • , David A. Beattie
    •  & Piotr Garstecki
  • Research | | open

    Activity often suppresses equilibrium ordering and crystallization in a group of driven or self-propelling colloids. Massana-Cid et al. show tunable self-healing process, where magnetic colloidal rollers are assembled to crystalline carpets upon a balance between magnetism and hydrodynamic interactions.

    • Helena Massana-Cid
    • , Fanlong Meng
    • , Daiki Matsunaga
    • , Ramin Golestanian
    •  & Pietro Tierno

News and Comment